<template>
    <div class="login_container">
        <div class="login_box">
            <!-- 登录头像 -->
            <div class="avatar_box">
                <img src="../assets/logo.png" alt="" />
            </div>
            <!-- 登录表单 -->
            <el-form
                :model="loginForm"
                :rules="loginRules"
                ref="loginFormRef"
                label-width="0px"
                class="login_form">
                <el-form-item prop="username">
                    <el-input
                        v-model="loginForm.username"
                        autocomplete="new"
                        prefix-icon="iconfont icon-user">
                    </el-input>
                </el-form-item>
                <el-form-item prop="password">
                    <el-input
                        v-model="loginForm.password"
                        type="password"
                        prefix-icon="iconfont icon-3702mima"
                        autocomplete="new-password"></el-input>
                </el-form-item>
                <el-form-item class="btns">
                    <el-button type="primary" @click="login">提交</el-button>
                    <el-button @click="resetLoginForm">重置</el-button>
                </el-form-item>
            </el-form>
        </div>
    </div>
</template>

<script>
export default {
    data() {
        return {
            loginForm: {
                username: 'admin',
                password: '123456'
            },
            loginRules: {
                username: [
                    {
                        required: true,
                        message: '请输入用户名',
                        trigger: 'blur'
                    },
                    {
                        min: 3,
                        max: 10,
                        message: '长度在 3 到 10 个字符',
                        trigger: 'blur'
                    }
                ],
                password: [
                    { required: true, message: '请输入密码', trigger: 'blur' },
                    {
                        min: 6,
                        max: 10,
                        message: '长度在 6 到 10 个字符',
                        trigger: 'blur'
                    }
                ]
            }
        }
    },
    methods: {
        resetLoginForm() {
            this.$refs.loginFormRef.resetFields()
        },

        login() {
            this.$refs.loginFormRef.validate(async (valid) => {
                if (!valid) return
                const { data: res } = await this.$axios.post(
                    '/login',
                    this.loginForm
                )

                if (res.meta.status !== 200) {
                    return this.$message.error('登录失败')
                }
                this.$message.success('登录成功')
                window.sessionStorage.setItem('token', res.data.token)
                this.$router.push('/home')
            })
        }
    }
}
</script>

<style lang="less" scoped>
.login_container {
    background-color: #2b4b6b;
    height: 100%;
}

.login_box {
    width: 450px;
    height: 300px;
    border-radius: 3px;
    background-color: #fff;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);

    .avatar_box {
        width: 100px;
        height: 100px;
        border-radius: 50%;
        padding: 10px;
        border: #eee 1px solid;
        background-color: #fff;
        box-shadow: 0 0 10px #ddd;
        position: absolute;
        left: 50%;
        transform: translate(-50%, -50%);

        img {
            width: 100%;
            height: 100%;
            border-radius: 50%;
            background-color: #eee;
        }
    }
}

.btns {
    display: flex;
    justify-content: flex-end;
}

.login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 0 20px;
    box-sizing: border-box;
}
</style>
